What Is the Advance/Decline (A/D) Line?

The advance/decline line (or A/D line) is a technical indicator that plots the difference between the number of advancing and declining stocks on a daily basis. The indicator is cumulative, with a positive number being added to the prior number, or if the number is negative it is subtracted from the prior number.

The A/D line is used to show market sentiment, as it tells traders whether there are more stocks rising or falling. It is used to confirm price trends in major indexes, and can also warn of reversals when divergence occurs.

The Formula for Advance/Decline (A/D) Line Is:


$\begin{aligned} &\text{A/D} = \text{Net Advances} + \begin{cases} \text{PA, if PA value exists} \\ \text{0, if no PA value} \\ \end{cases} \\ &\textbf{where:} \\ &\text{Net Advances} = \text{Difference between number of daily} \\ &\text{ascending and declining stocks} \\ &\text{PA} = \text{Previous Advances} \\ &\text{Previous Advances} = \text{Prior indicator reading} \\ \end{aligned}$​A/D=Net Advances+{PA, if PA value exists0, if no PA value​where:Net Advances=Difference between number of dailyascending and declining stocksPA=Previous AdvancesPrevious Advances=Prior indicator reading​

How to Calculate the A/D Line

1. Subtract the number of stocks that finished lower on the day from the number of stocks that finished higher on the day. This will give you the Net Advances.
2. If this is the first time calculating the average, the Net Advances will be the first value used for the indicator.
3. On the next day, calculate the Net Advances for that day. Add to the total from the prior day if positive or subtract if negative.
4. Repeat steps one and three daily.

What Does the A/D Line Tell You?

The A/D line is used to confirm the strength of a current trend and its likelihood of reversing. The indicator shows if the majority of stocks are participating in the direction of the market. 

If the indexes are moving up but the A/D line is sloping downwards, called bearish divergence, it’s a sign that the markets are losing their breadth and may be about to reverse direction. If the slope of the A/D line is up and the market is trending upward, then the market is said to be healthy.

Conversely, if the indexes are continuing to move lower and the A/D line has turned upwards, called bullish divergence, it may be an indication that the sellers are losing their conviction. If the A/D line and the markets are both trending lower together, there is a greater chance that declining prices will continue.

Difference Between the A/D Line and Arms Index (TRIN)

The A/D line is typically used as a longer-term indicator, showing how many stocks are rising and falling over time. The Arms Index (TRIN), on the other hand, is typically a shorter-term indicator that measures the ratio of advancing stocks to the ratio of advancing volume. Because the calculations and the time frame they focus on are different, both these indicators tell traders different pieces of information.

Limitations of Using the A/D Line

The A/D line won’t always provide accurate readings in regards to NASDAQ stocks. This is because the NASDAQ frequently lists small speculative companies, many of which eventually fail or get delisted. While the stocks get delisted on the exchange, they remain in the prior calculated values of the A/D line. This then affects future calculations which are added to the cumulative prior value. Because of this, the A/D line will sometimes fall for extended periods of time, even while NASDAQ-related indexes are rising.

Another thing to be aware of is that some indexes are market capitalization weighted. This means that the bigger the company the more impact they have on the index’s movement. The A/D line gives equal weight to all stocks. Therefore, it is a better gauge of the average small to mid-cap stock, and not the fewer in number large or mega-cap stocks.

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What Is After-Hours Trading?

After-hours trading is securities trading that starts at 4 p.m. U.S. Eastern Time after the major U.S. stock exchanges close. The after-hours trading session can run as late as 8 p.m., though volume typically thins out much earlier in the session. Trading in the after hours is conducted through electronic communication networks (ECNs).

Understanding After-Hours Trading

Traders and investors engage in after-hours trading for a variety of reasons. They may prefer trading with fewer market participants or their schedules may require it. They may want to take positions as a result of news that breaks after the close of the stock exchange. Or, they may want to close out a position before they leave on vacation.

Generally, after-hours trading refers to trading that takes place after normal market hours and up until about 8 pm. Premarket trading refers to trading that takes place before the start of normal market hours, generally from 7 a.m. until 9:25 a.m. Together, after-hours trading and premarket trading are referred to as extended-hours trading.

The precise times of extended-hours trading can depend on the ECN an investor uses or the financial institution where they place their orders. For instance, Wells Fargo allows after-hours trading from 4:05 p.m. ET until just 5 p.m.

Electronic markets (or ECNs) used in after-hours trading automatically attempt to match up buy and sell orders. If they can do so, trades are completed. If they can’t, trades remain unfilled.

After-hours trading typically only allows limit orders to buy, sell, or short, although a particular brokerage may be less restrictive. No stop, stop-limit, or orders with special instructions (such as fill or kill or all or none) are accepted. Moreover, orders are normally only good for the after-hours trading session in which they’re placed.

The maximum share amount per order is 25,000.

Quotes provided are limited to those available through the electronic market used. Investors may have access to other participating ECNs but it isn’t guaranteed.

Volume

In after-hours trading, the trading volume for a stock may spike on the initial release of news but most of the time thins out as the session progresses. The growth of volume generally slows significantly by 6 p.m. So, there is a substantial risk that investors will be trading illiquid stocks after-hours. 

Price

Not only does volume sometimes come at a premium in the after-hours trading sessions, so does price. It is not unusual for the spreads to be wide in the after-hours. The spread is the difference between the bid and the ask prices. Due to fewer shares trading, the spread may be significantly wider than during the normal trading session.

Participation

If liquidity and prices weren’t enough to make after-hours trading risky, the lack of participants may do the trick. That’s why certain investors and institutions may choose not to participate in after-hours trading, regardless of news or events.

It’s quite possible for a stock to fall sharply in the after hours only to rise once the regular trading session resumes the next day at 9:30 a.m. Many big institutional investors have a certain view of price action during after-hours trading sessions and express that view with their trades once the regular market re-opens.

Since volume is thin and spreads are wide in after-hours trading, it is much easier to push prices higher or lower. Fewer shares and trades are needed to make a substantial impact on a stock’s price. That’s why after-hours orders usually are restricted to limit orders. If your brokerage doesn’t restrict them, consider them anyway as a means to protect yourself from unexpected price swings and order fills.

Standard Trading vs. After-Hours Trading

What Is Active Management?

The term active management means that an investor, a professional money manager, or a team of professionals is tracking the performance of an investment portfolio and making buy, hold, and sell decisions about the assets in it. The goal of any investment manager is to outperform a designated benchmark while simultaneously accomplishing one or more additional goals such as managing risk, limiting tax consequences, or adhering to environmental, social, and governance (ESG) standards for investing. Active managers may differ from other is how they accomplish some of these goals.

For example, active managers may rely on investment analysis, research, and forecasts, which can include quantitative tools, as well as their own judgment and experience in making decisions on which assets to buy and sell. Their approach may be strictly algorithmic, entirely discretionary, or somewhere in between.

By contrast, passive management, sometimes known as indexing, follows simple rules that try to track an index or other benchmark by replicating it. Those who advocate for passive management maintain that the best results are achieved by buying assets that mirror a particular market index or indexes. Their contention is that passive management removes the shortfalls of human biases and that this leads to better performance. However, studies comparing active and passive management have only served to keep the debate alive about the respective merits of either approach.

Understanding Active Management

Investors who believe in active management do not support the stronger forms of the efficient market hypothesis (EMH), which argues that it is impossible to beat the market over the long run because all public information has already been incorporated in stock prices.

Those who support these forms of the EMH insist that stock pickers who spend their days buying and selling stocks to exploit their frequent fluctuations will, over time, likely do worse than investors who buy the components of the major indexes that are used to track the performance of the wider markets over time. But this point of view narrows investing goals into a single dimension. Active managers would contend that if an investor is concerned with more than merely tracking or slightly beating a market index, an active management approach might be better suited for the task.

Active managers measure their own success by measuring how much their portfolios exceed (or fall short of) the performance of a comparable unmanaged index, industry, or market sector.

For example, the Fidelity Blue Chip Growth Fund uses the Russell 1000 Growth Index as its benchmark. Over the five years that ended June 30, 2020, the Fidelity fund returned 17.35% while the Russell 1000 Growth Index rose 15.89%. Thus, the Fidelity fund outperformed its benchmark by 1.46% for that five-year period. Active managers will also assess portfolio risk, along with their success in achieving other portfolio goals. This is an important distinction for investors in retirement years, many of whom may have to manage risk over shorter time horizons.

Strategies for Active Management

Active managers believe it is possible to profit from the stock market through any of a number of strategies that aim to identify stocks that are trading at a lower price than their value merits. Their strategies may include researching a mix of fundamental, quantitative, and technical indications to identify stock selections. They may also employ asset allocation strategies aligned with their fund’s goals.

Many investment companies and fund sponsors believe it’s possible to outperform the market and employ professional investment managers to manage the company’s mutual funds. They may see this as a way to adjust to ever-changing market conditions and unprecedented innovations in the markets.

Disadvantages of Active Management

Actively managed funds generally have higher fees and are less tax-efficient than passively managed funds. The investor is paying for the sustained efforts of investment advisers who specialize in active investment, and for the potential for higher returns than the markets as a whole.

An investor considering active management should take a hard look at the actual returns after fees of the manager.

Advantages of Active Management

A fund manager’s expertise, experience, and judgment are employed by investors in an actively managed fund. An active manager who runs an automotive industry fund might have extensive experience in the field and might invest in a select group of auto-related stocks that the manager concludes are undervalued.

Active fund managers have more flexibility. There is more freedom in the selection process than in an index fund, which must match as closely as possible the selection and weighting of the investments in the index.

Actively managed funds allow for benefits in tax management. The flexibility in buying and selling allows managers to offset losers with winners.

Managing Risk

Active fund managers can manage risks more nimbly. A global banking exchange-traded fund (ETF) may be required to hold a specific number of British banks. That fund is likely to have dropped significantly following the shock Brexit vote in 2016. An actively managed global banking fund, meanwhile, might have reduced its exposure to British banks due to heightened levels of risk.

Active managers can also mitigate risk by using various hedging strategies such as short selling and using derivatives.

Active Management Performance 

There is plenty of controversy surrounding the performance of active managers. Their success or failure depends largely on which of the contradictory statistics is quoted.

Over 10 years ending in 2021, active managers who invested in domestic small growth stocks were most likely to beat the index. A study showed that 88% of active managers in this category outperformed their benchmark index before fees were deducted.

What Is the Average Annual Return (AAR)?

The average annual return (AAR) is a percentage used when reporting the historical return, such as the three-, five-, and 10-year average returns of a mutual fund. The average annual return is stated net of a fund’s operating expense ratio. Additionally, it does not include sales charges, if applicable, or portfolio transaction brokerage commissions.

In its simplest terms, the average annual return (AAR) measures the money made or lost by a mutual fund over a given period. Investors considering a mutual fund investment will often review the AAR and compare it with other similar mutual funds as part of their mutual fund investment strategy.

Understanding the Average Annual Return (AAR)

When you are selecting a mutual fund, the average annual return is a helpful guide for measuring a fund’s long-term performance. However, investors should also look at a fund’s yearly performance to fully appreciate the consistency of its annual total returns.

For example, a five-year average annual return of 10% looks attractive. However, if the yearly returns (those that produced the average annual return) were +40%, +30%, -10%, +5% and -15% (50 / 5 = 10%), performance over the past three years warrants examination of the fund’s management and investment strategy.

Components of an Average Annual Return (AAR)

There are three components that contribute to the average annual return (AAR) of an equity mutual fund: share price appreciation, capital gains, and dividends.

Share Price Appreciation

Share price appreciation results from unrealized gains or losses in the underlying stocks held in a portfolio. As the share price of a stock fluctuates over a year, it proportionately contributes to or detracts from the AAR of the fund that maintains a holding in the issue.

For example, the American Funds AMCAP Fund’s top holding is Netflix (NFLX), which represents 3.7% of the portfolio’s net assets as of Feb. 29, 2020. Netflix is one of 199 equities in the AMCAP fund. Fund managers can add or subtract assets from the fund or change the proportions of each holding as needed to meet the fund’s performance objectives. The fund’s combined assets have contributed to the portfolio’s 10-year AAR of 11.58% through Feb. 29, 2020.

Capital Gains Distributions

Capital gains distributions paid from a mutual fund result from the generation of income or sale of stocks from which a manager realizes a profit in a growth portfolio. Shareholders can opt to receive the distributions in cash or reinvest them in the fund. Capital gains are the realized portion of AAR. The distribution, which reduces share price by the dollar amount paid out, represents a taxable gain for shareholders.

A fund can have a negative AAR and still make taxable distributions. The Wells Fargo Discovery Fund paid a capital gain of $2.59 on Dec. 11, 2015, despite the fund having an AAR of negative 1.48%.

Dividends

Quarterly dividends paid from company earnings contribute to a mutual fund’s AAR and also reduce the value of a portfolio’s net asset value (NAV). Like capital gains, dividend income received from the portfolio can be reinvested or taken in cash.

Large-cap stock funds with positive earnings typically pay dividends to individual and institutional shareholders. These quarterly distributions comprise the dividend yield component of a mutual fund’s AAR. The T. Rowe Price Dividend Growth Fund has a trailing 12-month yield of 1.36%, a contributing factor to the fund’s three-year AAR of 15.65% through Feb. 29, 2020.

Special Considerations

Calculating an average annual return is much simpler than the average annual rate of return, which uses a geometric average instead of a regular mean. The formula is: [(1+r₁) x (1+r₂) x (1+r₃) x … x (1+r_i)] ^(1/n) – 1, where r is the annual rate of return and n is the number of years in the period.

The average annual return is sometimes considered less useful for giving a picture of the performance of a fund because returns compound rather than combine. Investors must pay attention when looking at mutual funds to compare the same types of returns for each fund.